#include <stdio.h>

int main()
{
    int a = 5;
    int b = 2;
    int c;

    c = a + b;
    printf("c = a + b 的值是：%d\n",c);
    c = a - b;
    printf("c = a - b 的值是：%d\n",c);
    c = a * b;
    printf("c = a * b 的值是：%d\n",c);
    c = a / b;
    printf("c = a / b 的值是：%d\n",c);
    c = a % b;
    printf("c = a %% b 的值是：%d\n",c);
    c = a++;
    printf("c = a++ 的值是：%d\n",c);
    c = a--;
    printf("c = a-- 的值是：%d\n",c);

    return 0;
}